navarro y gonzalez



4 Shelets-Sheet 1 .Henne ncanua Filed Dec. 23. 1924 R. NAvARRo Y GNzALEz Aug. '28. 1928.

kk un Aug. 28, 1928.

R. NAVARRO Y GONZALEZ PACKING MACHINE Filed Dec. 23', 1924 4 shouts-Sheet 2 Www '1 A TTORNEY.

R. NAvRRo Y' GqNzALEz Aug. 28, 19m

PAcxIm 'non/fm:

Filed Dec '23, 1924 4 Suma-Sheet a TTORNEYJT .unii

4 lShee's--Sheet 4 R NAVARRO Y GONZALEZ mcxm ucuma Filed Dec 23, 1924 Aug. 28, 1928.

Patented Aug. 28, 1928.

ROMAN NAVABRO Y GONZALEZ, OF' I'IABANA, CUBA..

PACKING MACHINE.

Application filed December 23, 1924, Serial No. 757,746, and in Cuba November 7, 1924.

This invention refers to packing machines and especially tLQlgarette packing machines, although the ini'etinmffifwbeapplied to other machines destined to pack other small objects of a form similar to that of cigarettes, and has for its principal object to provide a packing machine which presents improvements or perfections in the different instrumentalities which compose the same and which instrumentalities effect the operation of forming the package. of cigarettes which is to be wrapped; presenting the wrapper upon the travel o-f the cigarette package and finally effecting the folding of the wrapper around said package.

Another object of this invention is to provide a modification in the mechanism for forming the package of cigarettes, preliminary to the operation of wrapping the. same, which mechanism effects this operation in an eficient manner, by a slight gradual pressure upon the package and at the same time without said mechanism having horizontal partitions for the formation of the layers of cigarettes, which partitions are often the cause of trouble in the operation of the machine.

Another object of this invention is to pro- Vide means which facilitate the operation of the elements for gluing the wrapper of the package of cigarettes as said wrapper is folded around the same, by which means said operation is performed Very etliciently, thus avoiding an excess of paste or a deficient application of the same.

Another object of this invention is to provide an improvement in the mechanism which feeds the wrapper, by which a perfect breaking` of Vacuum takes place, so that the operation of feeding the wrapper from the wrapper magazine and leaving the same as the package of cigarettes travels along is performed with all efficiency and precision.

Another object of this invention is to pro- Vide a modification in the folding mechanism which completes the operation of packing, by siniplifying said mechanisms considerably and increasing at the same time the working etliciency of the same.

Another' object of this invention is to pro- Vide a cigarette packing` machine, the construction of which is suitable either for the making of a package made of a single wrapper, or of a double wrapper, one of common paper, and the other of lead paper, this being due especially to the improvements which constitute the inventon, including folding elements and ironers or smoothers which operate as the package is being formed, and also to the exceptionally smooth and accurate working of the suction box which operates to take the wrapper from the wrapper magazine.

More advantages and other considerations pertaining to' this invention will be deduced in the course of these specifications, especially by those expert in the art to which this invention a-ppertains, and with the aid of the accompanying drawings, in which the same characters of reference designate the same parts.

In the' drawings- Figure 1 is a top plan Vi ew of the packing machine which is the obj ect of this invention.

Figure 2 is a side elevation of the same.

Figure 3 is a partial rear' end elevatio'n of the machine.

Figure 4 is a partial Vertical longitudinal section to an enlarged scale, on line 4- 4 of Fig. 1.

Figure 5 is a partial, Vertical transverse section to an enlarged scale on line 5-5 of Figure 1.

Figure 6 represents a. different operative position of the same section as shown in Figure 5.

Figure 7 is a partial Vertical section in detail on line| 7-7 of Fig. 1.

Figures 8, 9 and 10 are Views in detail which illustrate the package lateral folding mechanism.

Figure 11 is a partia-l Vertical section in detail on line 4-4 of Fig. 1, showing a working position of the mechanism which effects final folding of the wrapper.

Figure 12 shows a different o-perative position in the same sectional view as Fig. 11.

Figures 18,14,15, 16, 17 and 18 are detailed perspective Views which show the different steps of folding the wrapper.

In the drawings is shown a table 1 of a rectangnlar form and supported by standards 2.

Upon said table is set the packing machine, which is compcsed primarily of the cigarette feeding magazine 3 of the usual construction,

installed approximately in the middle of the table and at one side of the longitudinal axis of same. Said magazine is provided with the usual shaking mechanism to agitate the mass of cigarettes, which is moved by a transmission of rod and cam 4 and 5. This movement is transmitted from a short horizontal motor shaft 6 on which is fastened a transmission pulley 7 moved from a suitable source of power which is not shown and on which shaft is fastened a pinion 8 which is geared to gears 9 and 10 secured to t-he ends of the horizontal shafts 11 and 12 installed under the table 1 and longitudinally of the same and held by hanging bracket 10', and the said cam 5 being Secured to the shaft 11.

In front of the magazine 3 is mounted the cigarette package pushing element constituted by a plunger 12' secured to a slidable block 12" which runs between longitudinal guides 13 fastened to the table by means of angles 13' said guides being adjustable by means of a set screw and slot 13" and controlling screws 13"' To the block 12" is fastened the comb or pushing element 14 which operates parallel to the plunger 12'.

The slide 12" is moved by a rocking lever 15 pivoted at its lower` end 15' to a beam 16 fastened between the standards 2 of the table. Said lever is hinged at its upper end to a rod 16' connected at its opposite end to the block 12". The movement is transmitted by a pinion gear 17' and 17" placed within a gear casing 17, and a crank 18 and a connecting rod 19 hinged to the lever 15.

VThe movement of the plunger 12' is facilitated by supported roller 20 mounted loosely between geared supports fastened near the magazine 3.

Beyond the magazine 3 is set a cigarette bunch fitting element which element consists of a casing 21 open at both ends, and having in its lower inner side a slot 22 running along the entire length of same, the object of which slot will be explained later.

The casing 21 is fastened to a block 23 movable along a guide 24 secured transversely to the table 1 the block 23 being moved by a horizontal rack 25 which is secured to the same, which rack is partially housed in a casing 26 set in the opposite side of the table 1. Said rack is in mesh with a gear 27 secured to a horizontal shaft 28 supported by a bracket 29, and on the opposite end of said shaft is fastened a pinion 30 which meshes with a Vertical rack 31 which receives movement from a cam 32 mounted on the shaft 11.

To the casing 21 is screwed another casing 35 formed by twoplates screwed together and between which plates is loosely mounted a small pinion 36' which meshes above with the lower toothed part of a horizontal plate 33 which is bent downwardly squarely on one end for forming a compressing head to operate within the box 21. The opposite end of the plate 33 forms a raised ear on which is secured a spring 34 the opposite end of which is fastened to the box 35 itself, and below, the pinion 36' meshes with a horizontal rack 36.

The outer end of the rack 36 ends in a head bearing against a horizonral stop screw 36", held by a post 36'.

Next to the arrangement just described is installed the wrapper magazine 37 which is held by angular plates 38 which also constitutes a hopper serving as a guide to the falling wrapper and which hopper is cut at its part which comes in alignment with the cigarette bunch fitting element 21.

To one of the plates referred to, is fastened a plate 39 which serves to close the rear part of the casing 21 when this is in a position to secure the cigarette package previous to the compressing of the same.

The magazine 37 is arranged in a vertical position and contains a plate 40 which presses against the bunch of wrappers, and is pressed against the same by a spring 41, to the rear of the plate 40 there being fastened a horizontal rod 42 the ends of which project from the magazine across horizontal guide grooves 43 opening into the sides of the magazine 37.

The first wrapper of the bunch is supported by a small fiuted piece 44 fastened to the lower border of the magazine 37, the edges of same being folded inwardly as indicated at 45 for holding the package of wrappers within the magazine 37 to prevent the falling of the same.

The wrappers are taken one by one from the bunch contained in the magazine 37 by a suction m-echanism comprising a vacuum casing` 46, having holes 46' in its outer side, and in communication with a horizontal tube 47 which forms an integral part of the same. The tube 47 has at the top a lengthened longitudinal slot 47' and is mounted slidably in a tubular bearing 48' which forms part of a bracket 48 secured to a standard 49 fixed to the table 1 and extending from the upper side of the supporting tube 48' is a collar 50 upon which is fitted a tube 51 connected with a vacuum breaking device 52 constructed in such a manner that the breaking of the vacuum takes place therein simultaneously with that of the vacuum casing 46. This is due to the operation of a cam 52 secured to the shaft 12, and a stem 52" provided with a spring 52', which stem operates a vacuum breaking valve 52", all as shown in dotted lines in F 1. The vacuum breaking device is connected by a tube a to a vacuum pump A fixed to the table 1.

The tube 47 ends rearly in a trunnion passing through a block 53 fastened to a horizontal rack 53' secured at its other end to the box 46, the said rack meshing with a pinion 53" mounted on a horizontal shaft 54 held at one end by an ear 48' which projects from the support 48, and at its other end by a bracket 49' secured to the hollow column 49.

Through the column 49 passes a Vertical rack which meshes with a pinion 56 secured to the shaft 54 and which rack receives a reciprocating movement from a cam 57 mounted on shaft 11.

In combination with the arrangement described is installed a paste casing B of standard construction which is moved by a standard gearing system C from the shaft 12 and arranged to paste the sides of the wrapper as this is formed while traveling through the chute 58 placed in aligmnent with the plunger 12', and said chute is formed by two I shaped plates held together in parallel position by spacing blocks 58".

The chute 58 contains the initial wrapper folding pieces 59 ancl the elliptical folding pieces 59', well known in these kinds of devices, and at the end of said chute, on each side two bevelled edged'y wheels 60 which turn in the same direction as the wrapper travels as itis pushed by the plunger 12', both Wheels being fastened to a horizontal shaft 61, mounted on standards 62 the said shaft being connected with a small motor 63 which gives an independent, continuous and very rapid movement to said wheels.

On each side of the chute 58 is an arrangement of two leaf springs 64 hinged at 64' to the plate in the bottom of the chute 58, said leaf Springs having the form shown in Fig. 8 and destined to cooperate with the mov-eme-nt of the wheels 60 as will be later shown. Loose rollers 58' are held in the top of the chute 58 on each side of the same for a purpose which will be explained further along.

The final folding operation of the wrapper is accomplished by the following` mechanisms.

A pasting roller 65 is carried by an arm 66 secured to a shaft 66' which carries on one end thereof a bracket 66" which is engaged with the end of a. rod 67 movable in guides 67""' and which rod received a reciprocating vertical movement through a connection with a T shaped lever 67' the free end of which carries a loose roller 67" in engagement with a cam 67 fastened to the end of shaft 11.

To the rod 67 is connected one end of a spring 67" and its other end is fastened to one of the guides for the rod 67.

To the opposite end of the shaft 66' is attached another arm 66"' to which is fastened one end of a spring 66" with its other end fixed to the cover of the chute 58.

The end folding mechanisms comprise two folding pieces 68 each squarely secured to the rod 69 enga-ged at its low-er end with two horizontal racks 70 and 71 movable in different planes, but both meshing with the same pinion 72, mounted loosely on a short shaft 7 3 fastened to a block 74 secured under the chute 58, said racks traveling in recesses 75 in two channelled Vertical guides 77 fastened to the rear end of the table 1, the purpose of which is to be explained later.

The block 74 is moved by a screw and slot engagement 78' by means of a lever 78 pivoted at 79 to the rear end of the table 1, the movement of the block being' guided by a pin 76 slidable in the slot 74'.

The lower end of the lever 78 has a roller 78' and engages the cam 80 secured to the shaft 12 and also is connected by a spring 80' to one of the guides 77. Between the guides 77 is a slidable plate 80 which at the top bears a casing 82 open on both ends and at top, and of the same size approximately as one of the cigarette packages, has arranged between its lateral edges, several loose spaced horizontal rollers 83.

From the front end of the casing 82 projects two vertical guides 84 between which is a movable plate 85 from the lower part of which project two| stops 85' and from its rear surface, in the middle, is a stop 85". Bearing against the upper border of said plate 85 is a spring 86 having its ends fastened to each side of the casing 82.

From the rear end of said casing is hinged the delivering chute for the finished package of cigarettes, this chute consisting simply o-f a long plate 87 provided with interrupted sides 87' alternating with loose Vertical rollers 88.

Movement of the slidable block 81 is accomplished through a short shaft 89 on which is fastened a cam 90 bearing against a roller 91 supported by ears 92 secured to the lower end of the slidable block 81 and by a gear 93 which meshes with a gear 94 secured to the shaft 12.

The operation of this machine is as explained in the following:

Supposing the magazine 3 filled with cigarettes and a bunch of wrappers D in the wrapper magazine 37 and the box 21 in alignment with the magazine, the drive from pulley 7, is transmitted from the gear 8 to the lateral gears 9 and 10 secured to the shafts 11 and 12 and therefore to the mechanisms driven from these shafts.

The slidable block 12" operated by the lever 15 moves along the guides 13 and carries with it the plunger 12' and also the pushing element 14 the fingers of which on passing through the magazine 8 push a bunch of 15 cigarettes in, depositing the same in the compressing casing 21, although it is evident that with slight modifications in the construction the number of cigarettes may be varied and also the number of layers.

The plate 38 placed in the rear of the casing 21 prevents the cigarettes from being pushed out of the same and at the same time evens the. end of the package.

Once inside of the box 21, the block 23 to which it is secured, moves along the guides 24 in a no-rmal transverse direction relative to the travel of the plunger 12' and the pushing element 14 causes the compression of the package of cigarettes Z) within the box 21 due to the movement of the compressing piece 83 pushcd by the spring 84 which forces it in the box 21 while the pinion 88' communicates to' the rack 36 a movement in the contrary direction all as is shown in Fig. 6.

The cigarette bunch having` been compressed as is shown in Fig. 6 the package is pushed by the plunger 12" toward the chute 58 and as this occurs the box 21 travels until it is again behind the magazine 8 to receive another bunch of cigarettes, the plunger escaping from the box in this movement, through the later-al opening 22 in same.

lVhen the outer end of the rack 86 strikes against the screw 36" said rack is pushed inwardly causing the reverse move-ment of the compressor 83, which is moved out as is shown in Fig. 5 to permit the admission of another bunch of cigarettes in the box 21.

`When the bunch of cigarettes is p ushed toward the chute 58 it finds in its path a. wra-pper C which is taken from the wrapper magazinc 87 by the suction box 46 which has a reciprocal horizontal movement, due to the gear and rack connections 58'-53 and and 56, and in which box is formed the vacuum as it travels towards the wrapper magazine 87, since the slot 47' which exists in the tube 47 remains closed by the tubular guide 48 through which it slides, the vacuum being broken as soon as the box 46 returns in its reeiprocation when the tube 47 places its slot 47' again in communication with the air.

The vacuum is also broken simultaneously in the pump A due to the breaking device 52 the valve 52" of which is opened by the action of the lever 52".

The wrapper C taken by the box 46 and carried over the hopper 88 as shown in Fig. 7 is released from the box 46 and falls, when the vacuum is broken in the manner above described. sliding along` the guides which form the hopper and in front of the cigarette bunch 7) the end of which strike against the middle of the wrapper C. which as is illustrated in Fig. 13 effects the first folding of same and immediately performs the folding of the end and sides of the wrapper which is indicated by a, c, (Z and 8 in Figs. 14 and 15 due to the folding pieces 59 and 59' in the chute 58. and the pasting wheels of the pasting device B effect the pasting of the flaps f of the wrapper. which flap is folded upwardly as shown in Fig. 16 by means of the wheels 60 which move very rapidly in the direction in which the package travels, smoothing or ironing the sides of same and causing a perfeet adhesion of the pasted parts of the package.

The leaf Springs 64 aid in this operation, guiding the flap (f) which is to be folded, along the Wheels 60. The loose roller 58 facilitate and guide the exit of the wrapper to the outside of the chute 58.

It is obvious that the above arrangement facilitates the use of this machine to wrap, using wrappcrs composed of one sheet of common paper and another of leaf lead paper, the use of packages made in this way being very usual as is known.

The folded wrapper as is shown in Fig. 16 is introduced by the pushin g of the plunger 12' at the end of its run7 into the box 82 at that moment in aligmnent with the chute 58 as shown in Fig. 4 and which box is carried along by the slidable block 81 operated by the cam 90.

In this position the end folding pieces 68 operated by the double rack 70 and 71 operated simultaneously by lever 78 and cam 80 accomplish the folding of the end of the wrapper indicated by (g) in Fig. 17.

In the following movement of the cam 90, the slidable block 81 and the box 82, reach the end of their upward run, beyond the cover of the chute 58 and the lower flap of the wrapper will remain hanging as shown in Fig. 11, while the plate 85 which in the previous position was held against the tension of the spring 86 by the stops 85' in engagement with the cover of the chute 58 is held against the tension of said spring and descends between the guides 84 thus folding downwardly the flap (h) of the wrapper. The slidable block 81 in response to the movement of the cam 90 begins to descend, until the flap (i) of the wrapper is extended over the top of the chute 58 as shown in Fig. 12.

At that moment the paste roller receiving its supply from the paste box B through the action of the transmitting` cam 67"' l-ever 67' and rod 67 is lowered for applying the paste to the inner surface of fiap as shown in Fig. 12.

Vhen the slidable block 81 reaches the end of its downward run the casing 82 returns to its position in alignment with the chute 58 to receive another wrapper and the cover of the chute itself effects the final folding of the wrapper as shown in Fig. 18.

By the pushing of the successive packages which are being continuously pushed by the plunger 12' the finished packages are pushed along and out through the delivering channel 87.

The rollers 88 in the box 81 perform the operation of removing any excess paste from the packages` and at the same time facilitate the exit of the package to the chute 87 by acting as antifriction rollers.

It is evident that within the scope of this description many modifications may be made wthout departing from the main idea of this invention, so that I do notV limit myself to the structure above specified, but desire that the Letters Patent protect that which is covered by the following claims;

Claims:

1. In cigarette packing machines, compressor elements for compressing a bunch of cigarettes prior to Wrapping the same, comprising, an open ended casing to receive a bunch of cigarettes, a compressor operable viin the casing, means for giving the casing a mo'vement transverse to the directlon of subsequent travel of the bunch and means to operate the compressor for eifecting a light compression of the bunch of cigarettes While Within the casing.

2. In cigarette packing machines, compressor elements for compressing a bunch of cigarettes prior to wrapping the same, comprising, an open ended casing to receive a bunch of cigarettes, a compressor operable within the casing, means for givng the casing a movement transverse to the direction of subsequent travel of the bunch and means to operate the compressor for efi'ecting a light compression of the bunch of cigarettes While within the casing, a longitudinal opening in one side of the casing, release means for the compressor, and a pusher for forcing the bunch out of the casing through the longitudinal opening.

3. In packng machines, in combination, a cigarette feeding means, a receiving casing fed by the feed means, a pushing means for the cigarettes in the casing, a Wrapper feeding means and folding means for the bunch of cigarettes pushed from the casing, the casing being open at both ends and provided on one side With a longitudinal opening, a slidable block carrying the casing and movable in a direetion transverse to that in which the bunch of cigarettes travels, means to reciprocate the block for placing the casing intermittently in front of the pushing means a conipressor projecting into the casing and operable by mechanism including, a double rack, a pinion intermediate the rack tensioning the compressor spring, a stop acting on one of the racks of the double rack to release pressure of the compressor upon the cigarette bunch in the casing, and a pusher Operating through the longitudinal opening in the casing.

In testimony Whereof I have signed my name to this specification.

ROMAN NAVARRO Y GONZALES. 

